Hi JohnDiss.
No.Any Exception. But In The State That I know That Pnt Is In The Polygon(FeatureDataRow1.Geometry), But "Pnt.Within(FeatureDataRow1.Geometry)" Return "Flase". But It Must Return "True".
Base Of My Question: I Need A Function That Check A Point Is In The Polygon( In A ShapeFile ) Or No???
Thank You Very Much For Your response.

Hi again saminsalemi, unfortunately i dont really have enough time to do you a demo at the moment, but i can give you a pointer- there is a class NtsGeometryConverter
in the Extensions project which will allow you to convert easily between SharpMap and NTS geometry models.

So you can read the shapefile using the shapefile provider, then you can modify your procedure above, converting the geometry from sharpmap to NTS and carrying out your test before proceeding with the original SharpMap geometry. hth
jd